B-Line Eaton series slotted angle, 1.6" height, 144" length, 1.6" width, Steel channels, Green, Zinc, 300 lbs, 14 gauge, Channel, strut and fittings

The SA158ZN144 slotted angle is rated to 300 lbs. That's the published load capacity for the angle itself; how much of it you can actually use depends on your span and how often you anchor it back to structure.

Yes, the SA158ZN144 carries a UL Listed certification, which is what an electrical inspector or a spec-driven institutional job typically asks for on support framing for conduit, cable tray, and enclosures.

That's the normal way it's used. The 144 inch stick is field cut and bolted through the existing slots, so one length covers multiple brackets, shelf frames, and equipment supports. Plan on touching up cut ends, since the zinc coating stops at the cut.

Slotted angle like the SA158ZN144 is an L-shaped 14 gauge section you bolt straight through, best for brackets, frames, racks, and light equipment supports where you want to drill nothing and adjust often. Strut channel is the C-shaped section that takes spring nuts and conduit clamps, and it's what you want for pipe and conduit runs or trapeze hangers. The angle is the simpler, lighter option; strut is the one that accepts the clamp hardware.

The SA158ZN144 ships as the angle only, a single 144 inch length. Bolts, nuts, base plates, and corner fittings are ordered separately. Since it's slotted on both legs, standard strut-system hardware bolted through the slots is all most brackets need.

The SA158ZN144 is a green zinc finished steel angle. Zinc plating handles indoor and protected mechanical and electrical room service well. For sustained exposure to weather, wash-down, or coastal air, step up to a hot dip galvanized or stainless section instead.